Refrigerator



FIG. 1 is a perspective view of a refrigerator showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a perspective view of the refrigerator where the refrigerator is in an open state.

The broken lines in the drawings depict portions of the refrigerator that form no part of the claimed design. 

CLAIM The ornamental design for a refrigerator, as shown and described. 